Trophies:

Bronze trophies
Goliath, Meet David – Allowed a Goliath to level up four times before killing him.
Went Five Rounds – Completed Round 5 of any Circle of Slaughter.
Not Quite Dead – Reached level 5.
Better Than You Were – Reached level 10.
Arctic Explorer – Discovered all named locations in Three Horns, Tundra Express, and Frostburn Canyon.
Urban Explorer – Discovered all named locations in Sanctuary, Opportunity, and Lynchwood.
Highlands Explorer – Discovered all named locations in The Highlands, Thousand Cuts, and Wildlife Exploitation Preserve.
Blight Explorer – Discovered all named locations in Eridium Blight, Arid Nexus, and Sawtooth Cauldron.
Sugar Daddy – Tipped Moxxi $10,000.
Decked Out – Had Purple-rated gear or better equipped in every slot.
Sabre Rattler – Killed 100 enemies with the Sabre turret.
Phased and Confused – Phaselocked 100 enemies.
So Much Blood! – Gunzerked continuously for 90 seconds.
Cute Loot – Killed a Chubby.
Tribute To A Vault Hunter – Got an item from Michael Mamaril.
Definitely An Italian Plumber – Killed Donkey Mong.
High-Flying Hurler – Killed a flying enemy with a thrown Tediore weapon.
Token Gesture – Redeemed 25 tokens.
Unseen Predator – Remained in Zero’s Deception mode for ten seconds straight.
Build Buster – Killed a Constructor without it ever building another bot.
How Do I Look? – Unlocked 10 customization items.
Friendship Rules – Revived someone from “Fight for Your Life!” that is on your friends list.
Better Than Money – Purchased 5 items from the black market.
Up High, Down Low – Gave Claptrap a high five.
Bounty Hunter – Completed 20 side missions.
First One’s Free – Completed the mission “My First Gun”.
Dragon Slayer – Completed the mission “Best Minion Ever”.
A Road Less Traveled – Completed the mission “The Road To Sanctuary”.
New In Town – Completed the mission “Plan B”.
An Old Flame – Completed the mission “Hunting The Firehawk”.
No Man Left Behind – Completed the mission “A Dam Fine Rescue”.
Wilhelm Screamed – Completed the mission “A Train To Catch”.
Sky’s The Limit – Completed the mission “Rising Action”.
Can See My House From Here – Completed the mission “Bright Lights, Flying City”.
Farewell, Old Girl – Completed the mission “Wildlife Preservation”.
Got The Band Back Together – Completed the mission “The Once and Future Slab”.
What does it mean? – I can’t even capture it on my camera.
Well That Was Easy – Completed the mission “Shoot This Guy in the Face”.
Feels Like The First Time – Opened the chest at the bus stop in Fyrestone.

Silver trophies
Always Improving – Reached level 25.
Capped Out?For Now – Reached level 50.
World Traveler – Discovered all named locations.
Did It All – Completed all side missions.
Identity Theft – Completed the mission “The Man Who Would Be Jack”.
An Angel’s Wish – Completed the mission “Where Angels Fear To Tread”.
Bombs Away – Completed the mission “Toil And Trouble”.
Knowing Is Half The Battle – Completed the mission “Data Mining”.
Thresher Thrashed – Defeated Terramorphous the Invincible.

Gold trophies
Challenge Accepted – Completed level 1 of all non-level-specific challenges with a single character.
Cool Story, Bro – Defeated Jack.

Platinum trophy
Borderland Defender Round Two – Unlocked all Borderlands 2 trophies.